Cardboard is gaining popularity as a quirky, environmentally-friendly design material. But just because itâ€™s a cheap material doesnâ€™t mean that all cardboard furniture is affordable. Designer cardboard still carries a very designer price tag: the Frank Gehry Wiggle chair (designed in 1972) will put you back $985 or more.Â Here are some affordable cardboard options that add an element of fun, but wonâ€™t leave you broken-hearted once it falls apart because itâ€™s made of cardboard.